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板料折弯力表
板料折弯力
表
The Chart
of Force fo
Bending Plate
(Air Bending)
v
b
4
2.8
0.7
6
4
1
8
5.5
10
12
14
16
18
20
24
28
32
36
40
45
50
55
60
65
70
80
90
100
120
7
8.5
10
11
12.5
14
17
20
22
25
28
31
35
38
42
46
49
56
63
70
85
2
2.3
2.6
3
3.3
3.8
4.5
5
6
6.5
7
8
9
10
10.5
11
13
14
16
19
1.3
1.6
0.5
40
30
0.6
60
40
30
30
0.8
1
1.2
1.5
2
This chart is calculated
according to
70
50
40
30
the plate of
tensile strength
110
80
70
60
120
100
80
70
60
ó
b
=
450N/mm
and length
L=1m.
2
150
120
110
90
80
The force can be got according to
the proportion while different kind
220
190
170
150
130
110
2.5
250
220
200
170
150
130
of plate and different
length to be
bent.
3
3.5
4
S
4.5
5
6
8
10
330
290
250
210
180
160
400
330
290
250
220
200
440
370
330
290
260
230
210
ó
b
=
450N/mm
2
本表数值是以材料强度
470
410
370
330
300
270
240
510
450
400
360
330
300
270
250
520
470
430
390
360
340
300
及长度
L=1m
计算而得,不同强
度的材料及长度所需的折弯力
可按相应的比例计算而得。
700
640
600
520
460
420
810
720
650
12
950
780
1
14
1300 1100
板料折弯力计算公式:
Calculating
Formula
:
P=650S<
/p>
2
L/V
(
ó<
/p>
b
=
450N/mm
)
P
—
折弯力
(千牛)
P
:
Bending Force
(kN)
2
S
—
板厚
(毫米)
S
:
Thickness of the Plate
(mm)
L
—
板宽
(
米
)
L
:
Width of the Plate
(m)
V
—
下模槽宽
(毫米)
V
:
V-Opening of the Bottom Die
(mm)
特殊形状工件折弯示例
2